arm-emulator.dts

// SPDX-License-Identifier: GPL-2.0
/*
 * ARM emulator device tree source
 *
 * Copyright (c) 2019 hxdyxd
 */
/dts-v1/;
#include <dt-bindings/input/input.h>

/ {
	model = "ARM Emulator";
	interrupt-parent = <&intc>;
	#address-cells = <1>;
	#size-cells = <1>;

	clocks {
		#address-cells = <1>;
		#size-cells = <1>;
		ranges;

		osc24M: clk-24M {
			#clock-cells = <0>;
			#reset-cells = <0>;
			compatible = "fixed-clock";
			clock-frequency = <24000000>;
			clock-output-names = "osc24M";
		};
	};

	chosen {
		bootargs = "console=ttyS0 rootwait phram.phram=rootfs,0x80000000,512Mi root=/dev/mtdblock0 rw rootfstype=ext2 init=/linuxrc earlyprintk video=vfb:640x480-24@24 user_debug=0xff";
		stdout-path = "serial0:115200n8";
	};

	aliases {
		serial0 = &uart0;
	};

	memory@00000000 {
		device_type = "memory";
		reg =  <0x00000000 0x2000000>; //32M
	};

	intc: interrupt-controller@4001f040 {
		compatible = "hxdyxd,armemulator-ic";
		reg = <0x4001f040 0x10>;
		interrupt-controller;
		#interrupt-cells = <1>;
	};

	timer@4001f020 {
		compatible = "hxdyxd,armemulator-timer";
		reg = <0x4001f020 0x10>;
		interrupts = <0>;
		clocks = <&osc24M>;
	};

	uart0: serial@40020000 {
		compatible = "snps,dw-apb-uart";
		reg = <0x40020000 0x100>;
		interrupts = <1>;
		reg-shift = <2>;
		reg-io-width = <4>;
		clock-frequency = <115200>;
		status = "okay";
	};
	
	uart1: serial@40020100 {
		compatible = "snps,dw-apb-uart";
		reg = <0x40020100 0x100>;
		interrupts = <2>;
		reg-shift = <2>;
		reg-io-width = <4>;
		clock-frequency = <115200>;
		status = "okay";
	 };
};